Clutch.



N'o.- 334,857. PATENTBD ocT. 3o, 1906.

- T. H. WORRALL.

y CLUTCH.

l APPLICATION FILED HOV. 9.1905.

2 SHEETS-SHEET 1.

n n. I zgmzesses' "l f I .bwa/Mii# @W y Mmmm 1 .I..TENTE1J OCT. 3o, 1906.

L L A R R 0 W k um T l oQLUTcH. APPLIOATION FILED HOV. 9. 19 05.

2 SHEETS-SHEET 2.

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Il l l1 Inventar. JMmas/. fqrraZZ UNITED sTATEs 4PATENT oEEIoE.- lTHOMAS H. woRnALL, oF Laconia, NEW HAMrsniaE. i

i .CLU-ren. l

\ ism, and more particularly that of the friction IQ.

type. y

t conslsts of the various features and coni- 'A binations hereinafter described and claimed.

In the accompanying drawings, in which.

similar characters designate like parts throughout the several. views, Fi re, 1 is a side elevation of one embodiment o my invention. Fig. 2 is a similar view of the o posite side. Fig. 3 is a vertical section on t e line 3 v3 of Fig. 1, and Fig. 4 is a horizontal -sectional detail through the pressure-applying disk on the line 4 4 of Fi 1.

In the present embodiment of my invention I have illustrated m improved clutch applied as a'cut-off coupllng'between alined s afts and 11, the former of which may be the driving element, f Upon the shaft 10 is mounted a pressure-recelvin disk 12, having a hub 13, by whichI the isk may be se'- .cured to the shaft. "About the outer face of this disk or that on the side'from which `the .hub projects is -a circular series of recesses to receive friction-blocks 14,. which may be of wood, fiber, metal, orany other convenient material. Fast-upon the shaft 11 is a pressure-a plying disk '15, having a hub 16.

Throug the. disk 15'are openings 17', herel shown 'as four in number and being circularly arranged.` These openings are prefer-` lv ably generallysector-shaped and may be disk. From the outer s located equidistantly from one another. From the outer face of -the disk 15, at each side of the openings 17, extend studs or rojections 18,;adapted to receive arms 19 om contact members 20, which extend into the. disk-openings and lpreferably have secured in recesses separable friction-blocks 21, similar .tothose carried by the ressure-receiving l ace of each of the contact members 20 extends a stud or projection 22, u on which is ulcrumed a lever y23, connecte by a rod 24 to a 'contact member situated` upon Vthe o posite side of the pressure-receiving mem er. This contact member is shown as in the form'of a ring 25l having a-lange-26 bearing upon the edge of thedisk r`12. The ring '25 has aface l27 forY Speciiication of Letters Patent. Application filed November 9, 1905. Serial No. 286,449.

Patented oct. so, 190e.

contact with the friction members 14'. The

rods 24 are preferably threaded at the endsy opposite ktheir connection with the levers23 to' receive nuts 28, allowing the distance between the contact members' to be adjusted. With these nuts may coperate retaining and gage members, which, as illustrated, each consist of a bar 26, having separated jaws 26b 26b spaced from one another to contact with the faces of the nut at opposite sides. Through the inner Vportion of each retaining member Ais a substantially radial 'slot 26, throu h which a screw 261 extends and is threa ed into the ring 25. The length'of theslot is preferably'such ythat the retainingl membermay move into and out of copera'tion with the associated .nut without removing the screw 26d.

From the hub of the disk 15 project pairsof-lugs 29, correspondi yin number to the levers 23. These have lcrumed between them angle-levers 30, through the radiallyextending arms of which -are threaded screws 31 for 'contact with blocks 32 upon the inner extremities of the levers 23. By positioning `these screws the relation between the two levers may be varied to control the applica-` tion of the cliitch. v The outer arm of each of the angle-levers is joined by a link 33 'to lu s 33 upon an operating# collar 34, movab e alfiglthe shaft 11.

en the-operatingmember and1 lever j 'system is inthe osition most clearly shown in Fig. 3- of the rawings, the friction-.blocks of'the contact-members20 willbe 'forced against the in ner side of the ,ressure-receiv4 ing disk, while the face .of t e contact-ring wil be .drawn against the friction-blocks upon the o posite side, these opposite membersthus c utching the diskbetween them to compel the parts torotate together. When theoperatingl-lcollar is moved outwardl the pressure of t e screws 31 against the evers 23 is relaxed. The two sets ofcontact members -are then positivel moved out of engagement' with the dis 12 by springs 35,

vwhich are shown as surrounding the studs 18 abutting against lthe disk 15 and the' ar'ms of the members 20 and exerting their tensionl to move the latter outwardly from the disk 12, this at the same time effecting an o posite movement of the contact-ring. As t e contacting surfaces of the clutch wear. this may be takenlup by loosening the screws 2,6d and slipping back, the retaining members until IIO the nuts 28 may be turned. These arethen rotated through the same angle and rengaged by/the retaining members, which by theircoaction with the nut-faces occupying fixed angles with relation to one another gage 5' and maintain the adjustment. Thus a uniform engagement about the entire circumference is insured. It will be obvious that, -if desired, this clutch mechanism may be applied in other connections, as to a frictionro pulley, in the manner common in mechamsm of this class.

Having thus described my invention, I claim- 1. The combination witha clutch member,

l r 5 of a companion clutch member provided with an opening, and a contact member movable through the o 'ening into coperation with the first-name clutch member.

2, A- clutch comprising `a pressure-receiving disk, a pressure-applying disk provided .with an opening, a contact member mounted near the periphery ofthe disk and extending upon op osite sides of the pressure-receiving disk, an a contact member movable through e 5 the disk-opening.

opening, and a lever carried by one of the contact members and being connected with thel other. 5. A clutch comprising a pressure-receiving disk, a pressure-applying disk, provided with an opening, contact members mounted upon the pressure-applying disk upon opposite sidesof the ressure-receiving disk, one of said members eing movable through said 5o opening, a lever carried by one of the contact members, andadjustable means for connecting said lever andthe other contact member.

6. A clutch comprising a pressure-receivv site sides of the ing disk, a pressure-applying disk, provided with an opening, contact members mounted upon the pressure-applying disk upon'opposite sides of the ressure-receiving disk, one of said members eing movable through said opening, a lever carried by one of the contact members and being connected with the other, and a spring situated betweena contact member and the pressure-applying disk.

A 7. A clutch comprising a pressure-receiving disk, a pressure-applying disk, provided with an opening, contact members mounted upon the pressure-applying disk upon opposite sides of the ressure-receiving disk, one of said members eing movable through said opening, a lever carried by one of the contact members and being connected with the other, and a lever fulcrumed upon the pressure-applying disk and coperating with the contact member. l `v 8. A clutch comprising a pressure-receiving disk, a pressure-applying disk, provided 75 with an opening, contact members mounted upon-the pressure-applying disk upon opporessure-receiving disk, one of saidmembers eing movable through said opening, a lever carried by one of the contact members and being connected with the other,

a lever fulcrumedupon the pressure-apply,- ing disk and coperating with the contact member, and adjustable means for connect- `ing the levers.

i 9. A clutch comprising -a pressure-receiving disk, a pressure-applying disk having an o ening, a contact member movable through t e opening, a contact member situated upon the opposite side of the pressure-receiving disk, and a lever system connecting the contact members.

- 10. A clutch comprising a pressure-receiving disk, a pressure-applying vdisk having an opening, a contact member movable through the opening, a contact member situated upon the opposite side of the pressure-receiving disk, and a leve-.system connecting the contact members and the pressure-appl ing disk.

In testimony whereof'I have a xed my roo signature in presence of two witnesses.

THOMAS H. VYGRRALL.

Witnesses GEO. P.- MUNSEY,

O. J. Gnomes. 

